Double gate arrangement for weirs



NOV. 30, 1954 I LAUFER 2,695,501

DOUBLE GATE ARRANGEMENT FOR WEIRS Filed March 2, 1953 Inveniorf fi h ase /a e j, 2 f

United States Patent 01 DOUBLE GATE ARRANGEMENT FOR wErRs Max Joseph Laufer, Zweibrucken, Germany, assignor to Fried. Krupp Stahlbau Rheinhausen, Rheinhausen (Niederrhein), Germany Application March 2, 1953, Serial No. 339,543 Claims priority, application Germany March 21, 1952 2 Claims. (Cl. 6125) The present invention relates to weirs and, more particularly, to double sluice board or gate arrangements for weirs. More specifically, the present invention is directed to a double sluice board or gate, especially hook double gate, with which the bearing pressures of the main girder of the upper gate as well as of the lower gate are transferred onto the weir walls, while only the lower gate has a sealing contact with the weir walls, whereas the upper gate has a sealing contact with the lower gate only.

In my co-pending application, Serial No. 265,736, filed January 10, 1952, there has been described a double gate arrangement of the above mentioned type in which the upper gate includes a main girder having each of its end portions which extend into the recesses of the weir, provided with a passage to allow the passing of sealing supports or sealing arms therethrough, which supports or arms represent an extension of the lateral flanks of the lower gate and extend upwardly beyond the highest upper water level. With such a double gate, the bearing pressures of the main girder of the upper gate, as well as of the lower gate are transferred by runners or rollers onto runner rails common to both gates.

It is an object of the present invention to design a double gate with the above characteristics as a segmental valve or tainter gate.

It is another object of this invention to provide a segmental gate as set forth in the preceding paragraph which will be relatively simple in construction, easy to handle, and highly efficient in its sealing effect.

These and other objects and advantages of the invention will appear more clearly from the following specification in connection with the accompanying drawing in which:

Fig. 1 represents a view of a double gate arrangement according to the present invention as seen from the up stream water side, the right half of the upper omitted.

Fig. 2 is a side view of the segmental hook double gate shown in Fig. 1.

Fig. 3 represents a section taken along the line III-III of Fig. l, but on a somewhat larger scale than that of Fig. 1.

The essence of the present invention consists primarily in that the upper gate, as well as the lower gate, are each, by means of supporting arms, resting on fixed coaxially arranged bearings and are movable or tiltable about said bearings.

Referring now to the drawings in detail, the gate arrangement shown therein comprises an upper frame or gate 1 which extends over the lower gate 2 from the up stream side. The upper gate 1 rests against the lower gate 2 through the intervention of rollers or runners 3. The upper edge portion of the lower gate is provided with a horizontally extending yieldable seal 4 which at its ends, i. e., at the lateral ends, merges with upwardly extending likewise yieldable sealing means 5 arranged along an arc. The sealing means 5 are arranged on sealing supports 6 which form an extension of the lateral flanks of the lower gate and extend upwardly beyond the highest up stream water level. The lateral ends of the main girder gate being of the upper gate 1 extend into recesses 7 of the weir walls and are provided with passages 8 through which the supports 6 extend. These sealing supports 6 carry the yieldable sealing means 9 for engagement with the weir walls and also carry the upwardly extending sealing means 5 for engagement with the upper gate 1. The said sealing means 9 and 5 are preferably acted upon by adjustable spring means 10 and 11.

In order properly to guide the sealing supports and the upper gate, there are provided between the same, supporting rollers 12 and 13 which simultaneously take up the forces exerted by the upper water pressure and acting upon the sealing supports. These forces, as far as they are located in the direction of fiow x (Fig. 3) are conveyed onto the bearings 25 by means of the supporting arms 23 and 24. The said bearings 25 are arranged coaxially with regard to each other and the forces exerted thereupon and acting in a direction transverse to the direction of flow, balance each other. The actuation of the double gate is effected by separate hoisting means which may be of any standard design customary in connection with segmental valves or gates.

It is, of course, understood that the present invention is, by no means, limited to the particular construction shown in the drawings, but also comprises any modifications within the scope of the appended claims.

What I claim is:

1. In a double gate arrangement for Weirs, particularly hook double gate, in which the upper gate partially extends over the lower gate and rests thereon by roller means, and in which the bearing pressures of the main girder of the upper gate and of the lower gate are transferred to the weir walls, the combination of: fixed bearing means provided in axial arrangement with each other on said weir walls, supporting arms respectively connected to said upper gate and lower gate and journalled in said bearing means to allow tilting of said gates about said bearing means, the lateral ends of said upper gate adjacent said weir walls being provided with passages, and the lateral end portions of said lower gate being provided with extensions extending upwardly at least into said passages in any relative position of said upper and lower gates, and sealing means carried by said extensions for sealing engagement with said upper gate and with the weir walls.

2. In a double gate arrangement for weirs, particularly hook double gate, in which the upper gate partially extends over the lower gate and rests thereon by roller means, and in which the bearing pressures of the main girder of the upper gate and of the lower gate are transferred to the weir walls, and in which the lower gate only is in sealing engagement with the weir walls, the combination of: supporting arms having one of their ends respectively connected to said upper gate and said lower gate, bearing means arranged in axial alignment with each other and connected to said weir walls, the other end of said supporting arms being pivotally connected to said bearing means to allow turning of said lower and upper gates about a common axis, the lateral ends of said upper gate adjacent said weir walls being provided with passages, and the lateral end portions of said lower gate being provided with curved extensions extending upwardly at least into said passages in any relative position of sald upper and lower gates, and having their center of curvature located on said common axis, and sealing means carried by said extensions for sealing engagement with said upper gate and with the weir walls.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,422,076 Becher July 11, 1922 

